From mboxrd@z Thu Jan  1 00:00:00 1970
From: Philip Craig <philipc@snapgear.com>
Subject: ulogd2 and nflog prefix
Date: Mon, 15 May 2006 12:49:52 +1000
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The log message prefix contained in the netlink message is
not null terminated, but nflog_get_prefix() returns a pointer
to the data in the netlink message, and ulogd2 treats it as
null terminated.

I can create a patch to fix this if I know how it is meant to work:
- null terminate in kernel?
- nflog_get_prefix() should copy and null terminate?
- add nflog_get_prefix_len() and handle in ulogd?